copperas

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noun cop·per·as \ˈkä-p(ə-)rəs\

Definition of copperas

Origin and Etymology of copperas

Middle English coperas, from Anglo-French coperose, from Medieval Latin cuprosa, probably from aqua cuprosa, literally, copper water, from Late Latin cuprum


First Known Use: 14th century


Medical Dictionary

copperas

play
noun cop·per·as \ˈkäp-(ə-)rəs\

Medical Definition of copperas

  1. :  a green hydrated ferrous sulfate FeSO4·7H2O used especially in making inks and pigments—used especially of commercial grades not to be used internally


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